ἀνοῖξαι

From LSJ

ἕως τοῦ ἔξω τόπου περισπᾶται → be drawn away and expanded

Source

French (Bailly abrégé)

inf. ao. de ἀνοίγω.

Russian (Dvoretsky)

ἀνοῖξαι: inf. aor. к ἀνοίγω.